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Relevant LC-MS/MS parameters.
| Analyte | MRM Precurso r Q1 (m/z) | MRM Product Q3 (m/z) | Nature of MRM Transition Q1 → Q3 (m/z) | DP (V) | EP (V) | CE (V) | CXP (V) |
|---|---|---|---|---|---|---|---|
| Cystine | 241.0 | 152.0 | Quantifier | 32 | 5.8 | 19.8 | 10.9 |
| 74.0 | Qualifier | 32 | 5.8 | 41.1 | 5.6 | ||
| d4-Cystine | 245.1 | 154.0 | Quantifier | 42 | 6.5 | 18.7 | 9.3 |
| 74.0 | Qualifier | 42 | 6.5 | 39.0 | 5.4 |
Note: DP = Declusturing potential, EP = Entrance potential, CE = Collision energy, and CXP = Collision exit potential.
